The relative importance of olfaction and vision in a diurnal and a nocturnal hawkmoth
The relative importance of olfaction and vision in a diurnal and a nocturnal hawkmoth
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DOI：
10.1007/s00359-005-0081-6
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发表时间：
2006-04-01
影响因子：
2.1
通讯作者：
Kelber, Almut
中科院分区：
文献类型：
--
作者：
Balkenius, Anna;Rosen, Wenqi;Kelber, Almut
食蜜动物可以使用视觉和嗅觉来寻找有价值的花朵，不同的物种可能会对这两种感觉方式给予不同的权重。我们研究了白天或夜间的生活方式如何影响视觉和嗅觉的重量。我们测试了天真的天蛾的两个物种在风洞中，提出了一个气味源和视觉刺激。虽然这两个物种属于同一个鞘蛾亚科，Macroglossinae，但它们的行为却截然不同。夜行性的鹿草对气味的反应较好，而昼行性的星状巨舌草对视觉刺激的反应较好。由于夜行性的生活方式是鞘氨醇的祖先，白天活动的种类，M。星蛾是从主要使用嗅觉的夜行蛾进化而来的。在明亮的白天，视觉线索可能比气味更重要。
Nectar-feeding animals can use vision and olfaction to find rewarding flowers and different species may give different weight, to the two sensory modalities. We have studied how a diurnal or nocturnal lifestyle affects the weight given to vision and olfaction. We tested naive hawkmoths of two species in a wind tunnel, presenting an odour source and a visual stimulus. Although the two species belong to the same subfamily of sphingids, the Macroglossinae, their behaviour was quite different. The nocturnal Deilephila elpenor responded preferably to the odour while the diurnal Macroglossum stellatarum strongly favoured the visual stimulus. Since a nocturnal lifestyle is ancestral for sphingids, the diurnal species, M. stellatarum, has evolved from nocturnal moths that primarily used olfaction. During bright daylight visual cues may have became more important than odour.